Feeding $floodinfo() output back into its input is useful for tuning
the flood /sets by seeing which non-flooders are being caught long term
in the system.

The fields are these:

0

u@h mask that matches the flooder. Defaults to “*”.

1

channel mask. Defaults to “*”.

2

flood type mask. Defaults to “*”.

3

Server number. Defaults to -1, which matches all.

4

Numeric minimum number of flood hits.

5

Numeric minimum duration of flood.

6

Numeric minimum flood rate.

The last three numeric arguments may be negative, in which case, they
specify the _maximum_ values. These fields make it possible to deal
with different kinds of floods in different ways _after_ they occur.
For example, a join flood may be falsely triggered by a net join, but
it is reasonable to expect that if you have join and part flood records
for the same u@h, then it is participating in a join/part flood.